What are the best settings for mining Alephium (ALPH) on an Nvidia card?

GPU Compatibility Requirements

1. Alephium mining relies heavily on CUDA-enabled Nvidia GPUs, with optimal performance observed on cards featuring compute capability 6.1 or higher.

2. GTX 10-series cards such as the GTX 1060 6GB deliver stable hash rates around 18–22 MH/s under proper tuning.

3. RTX 30-series cards like the RTX 3070 and RTX 3080 achieve 45–65 MH/s depending on memory bandwidth and thermal headroom.

4. RTX 40-series models including the RTX 4070 Ti and RTX 4090 show diminishing returns per watt due to increased power draw without proportional hashrate gains.

5. Older cards such as the GTX 970 are unsupported in recent miner versions due to deprecated CUDA architectures and insufficient VRAM addressing.

Recommended Mining Software

1. Rhysminer remains the most widely adopted open-source Alephium miner for Nvidia hardware, supporting automatic algorithm detection and real-time overclocking profiles.

2. T-Rex Miner includes experimental ALPH support but requires manual configuration of kernel parameters and lacks native pool failover logic.

3. GMiner offers limited ALPH compatibility only in nightly builds, often introducing instability during extended runtime sessions.

4. Custom forks of lolMiner have been tested by community members, though binary integrity verification is not officially endorsed by the Alephium core team.

5. All miners must be compiled against CUDA Toolkit v11.8 or later to avoid memory allocation errors during DAG initialization.

Core Clock and Memory Tuning

1. A safe starting point for the RTX 3080 involves setting core clock to +100 MHz and memory clock to +1200 MHz using MSI Afterburner.

2. Power limit should be capped at 75% to prevent thermal throttling while maintaining consistent 58–62 MH/s output.

3. GPU temperature must remain below 72°C; exceeding this threshold triggers dynamic downclocking that reduces effective hashrate by up to 18%.

4. VRAM voltage adjustments are discouraged on consumer-grade cards, as they increase failure risk without measurable performance uplift.

5. Undervolting the GPU core by 80 mV while preserving base clocks improves efficiency by 12–15% without compromising stability across 72-hour stress tests.

Pool Configuration Essentials

1. Official Alephium pools such as alephium.org/pool and alph-pool.com enforce strict worker naming conventions to prevent duplicate share submissions.

2. Stratum protocol version must be set to v2; v1 connections result in rejected shares after block height 224,500.

3. Submitting shares with stale timestamps beyond 30 seconds from pool server time leads to immediate rejection without notification.

4. SSL/TLS encryption is mandatory for all connections to alph-pool.com; unencrypted attempts trigger connection resets after handshake initiation.

5. Each worker ID must map to a unique Alephium wallet address; reuse across multiple rigs violates pool anti-sybil policies and may suspend associated accounts.

Frequently Asked Questions

Q: Does Alephium mining require a specific version of Nvidia drivers?Yes. Driver version 515.65.01 or newer is required to ensure full CUDA 11.7+ support and prevent segmentation faults during DAG generation.

Q: Can I mine ALPH using integrated graphics?No. Integrated Intel or AMD iGPUs lack sufficient VRAM bandwidth and CUDA cores to execute the Alephium PoW algorithm effectively.

Q: Why does my miner report “Invalid DAG size” during startup?This occurs when the miner binary was compiled against an incompatible CUDA version or when VRAM capacity falls below the minimum 6 GB requirement.

Q: Is dual mining ALPH with another coin supported?Not natively. Alephium’s consensus layer prohibits concurrent kernel execution with other memory-intensive algorithms on the same GPU device.